Vacuum cleaner



FIG. 1 is a right side perspective view taken from the front and side showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view; the right side view being a mirror image thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom view thereof.

Broken lines are shown on the head of the vacuum cleaner to indicate that the design of the head of the vacuum cleaner forms no part of the design to be patented. 

The ornamental design for a vacuum cleaner, as shown and described. 